Mechanical movement.



4.` comm'. MECHANICAL MGIEMENT.

APPLICATION FILED MAR. |917.

menfed Nov. 12, 1918.

STATES PATENT OFFICE.- s

CLARENCE LCCBEELY, or Los ANGELES, CALIECRNIAASSIGNCB, Ev MEsNE AssIoN IIENTs,.TC MoTIoN PICTURE APPARATUS C9., INC., or NEW vomi, N. Y., A CoIzPof.

I BATIONF NEW YORK. I

MECHANICAL MOVEMENT.

To all whom z't may concern:

Be'itfknown that I, CLARENCE J. COBERLY,

which the .following is a speciication.

My invention comprises a-ne'W mechanical movement which is especially adapted for uasassembled..

. Fig. 2. isa side the same mechanism. 25

use in the motion picture camera .for the purpose of. imparting intermittent motion to thelm. In themotion picture art,-eel. "luloid or other photographic film having` perforations 'along its edge is intermittently r moved to expose successive portions thereof. My invention is particularly adapted tol impart this intermittent motion to the film, al-A though it may be used for other purposes.

' Referring' to the drawings, which are for v illustrative purposesonly:

Figure 1' is a front view ofthe mechanism Fig. 3 isa sectional, plan view on line 3-3 Fig. 4-is a sectionalplan view, on line plate. Referring tothe drawings, 11 designates awall having a vertically extending groove o 12 on -its-v rear face in which a film 13 1s in the groove Fig. 5 is a sectional, pian view' of oe'or the ngers and its connection'to the cam' Vslidahly arranged. The central portion of thegroove 12 is recessed, as indicated at 14,

so that the sensitized face ofthelm does notru'b against the Wall, .the film being held which are so arranged .that that portion of -the film having a hole 17 thereinis' directly behind the respective'slots 16..

18, 18 designates guides secured to the front' of' the wall' 11 in any suitable manner.4 sucht@guides being' .provided with vertical grooves 19 in which is slidably mounted a car-v riage plate 20, 'which'carriage plate consists of two vertical members 21,' a centrall crossbar.22 and a lower crossbar 23 rigidly con nected to the members 21 by suitable screws I "24. .The barv 23terminate`s ateach end in lugs 25,` each lug having therein a pi'n .26

upon which pivotally mounted an armv Specification of Letters Patent.

Applicationalednareni,191?. serial No.' 151,852. I.'

view, partly in section, of

' of the slot 36.

12 by vthe film gate '15: .Ar- 'ranged vertically, and extending through the wall 11, Aare two slots .or .openings 16V Patented ov. Y19.18. l.'

. 27,.-'the upper end of whichv terminates fanti.

inwardly projecting finger 285. adaptedtor-z extend intothe -hole 17 in the ilm. 4The arms. 27, near. their upper ends, are provided Al l in-theV en d of a cam/plate 30, being secured u thereto by means `of...s"c rews '31, so thatlthe" with lugs 29 which extend into a slot'fo'rmed.

cam plate 30 and. arms 27 move as one piece. Directly under .the can; platefis af guide plate 3 3 secured by means ofsuitable screws 34 to vlugs 35 formed fon'the carriage plate- 2O, the, ends o-'the guidev plate `33 being adapted to engagethe inner face of 'the-re4 spective arms 27 topreventzva chattering:orA I -whichconsists of two parallel? portions 3,7

sidewise "movementv of said vamis 27.

and-38 connected by y'an inclined-'portion 39.

The guide' plate sa is provided with a' S101; Aor l f which extendsinthesame' general direction as the straight portions ofthe "slot 36 in the cam plate-30 and which is directly under' the center or middle-of theinclined portion 39l Pivotally' mounted.on al pin' 41 supported on the carriage plate 120 is aconne'cting rod 42, ,the lo'werend of which 'is pivotally con- Anected by means cfa pin 43 to acrank disk 44'rigidly secured to a shaft 4:5,Qwhi`ch shaft .1 y.

is driven bysuitable niechanism, noushown'. The upper end ofthe connecting rodeXtends through the' slot 40 in the guide plate33l and through the' slot. 36 inthe cam' 'plate '30,1

The object of the `invention' vvis to'movef pif" the film 13 downwardly intermittently by' :the rotation' of the shaft 45.' Therotation' of the shaft 45 rotates theo crank pin 431 which is connected 'with the'carriage plate 20 through the connecting' rod 42,so that i the carriage'plate 2() 'moves 'up and ydo'v'vn in the guides .18y a distance equalto twice; the lradius of thecrank pin 43 for eachrevow lation-ofthe shafti45. The connectin'gfrod i A'the connecting rod swingsI on'an arcofff 1'00V circle, denoted by the dotted' vline 50r in". Fig. 1, slidably moving back and lvforth'inwhen the upper end ofthe connecting" rod .42 vis in the portion 38 ofthe slot 36,`the'cam plate 30. is moved outwardly from the ear riage plate 20,- which movementcarries .the 4arms 27 outwardly from the v.carriage plate, `11 0 Vof the carriage plate 20. t lpasses through its upper position on the so that the fingers 28 are moved out of en-A gagement with the holes 17 in the film 13,

vso that the plate 20 may slide 'without imparting any movement to the film. lith the shaft 45 moving in the direction of the arrow 51, this will occur on the up stroke I As the pin 43 center line of the Adevice denoted "by the dotted line 53 in l. the upper portion ofthe connecting rod 42 passes through the inclinedportion 39 of the slot 36, thereby moving the cam plate and arms 27 in-v v. the fingers 28 being disengaged from the 20 film as the crank pin 43 again passes through the center line atthe eXtreme lower portion of its movement. .The upper end of the connecting rod 42 is guided in it-sfiarc movement by means of the guide plate 33. The rod 42 swinging in the slot 40 of the guide plate. and being directly under the cam plate 30, prevents a chatterirg .or back and forth movement of lthe connectirg rod 42 as the same operates to move the cam plate, as above described.

I claim as my invention 1. mechanical movement for intermittently' moving a strip of material comprising a support having parallel guides thereon; a carriage plate sliding. in said guides; vradius arms pivoted on said carriage plate; means carried on the free ends of said radius arms for gripping said strip when said radius arms are in their depressed position; an actuating shaft; a crank formed on said shaft; a connecting rod pivoted on said crank at its lower end; means for pivotally connecting said connecting rod intermediate its length to said carriage plate; means by which the oscillation of the upper end of said connecting rod raises and depresses the free ends of said radius arms; and tn eans on said'carriage plate for preventing ,lateral movement4 of said radius arms.

2. A mechanical movement for intermittently moving a strip of material comprising a support having parallel guides thereon; a carriage plate sliding in said guides; radius arms pivoted on said carriage plate; means carried on the free ends of said radius arms for gripping` said strip when said radius armsare in their depressed position; an actuating shaft; a crank formed onsaid shaft; a'connecting y rod pivoted on said crank; means for pivotallv connecting said rod intermediate its length to said carriage plate; a cam plate carried on the free end of said adius arms and engaged by the upper end of said conguides; radius arms pivoted 0n said carriage plate; fingers formed on the free ends of said radius arms and properly located and proportioned to engage said perforations when said radius arms are depressed; an actuating shaft; a crank formed on said shaft; a connecting rod pivoted on said crank and on said carriage plate; means by which the oscillation of said connecting rod about its pivot on the carriage plate raises and depresses the free ends of said radius arms; and means on said carriage plate for guiding said connecting rod.

4. A mechanical movement for intermittentlv movingr a strip of material having perforations along the edges thereof; comprising ya support having parallel guides thereon; a carriage. plate sliding in said guides; radius arms pivoted on said carriage plate; fingers formed on the free ends of said radius arms and properly located and its pivot on said carriage plate; and a guide V plate mounted on said carriage plate having a straight slot therein through which the upper end of said connecting rod extends into the slot in the cam plate.

5. A mechanical movement for intermittently moving a strip of material comprising a support having parallel guides thereon: a carriage plate sliding in said guides; radiuslarms pivoted on said carriage plate; means carried on the free ends of said radius arms for gripping said strip when said radius arms are in their depressed position; an actuating shaft for reciprocating said carriage plate; a crank formed on said shaft; a rod pivotally connected at one end on said crank; means for pivotally mounting said rod intermediate its ends on said carriage plate, whereby thev free end radius arms pivoted on said carriage plate;

means Ycarried on the free ends of saldradius 1 arnisfor'gripping said. strip when :said ra- I u. as.,

" :fon said` crank.; means for pivotallymounting said rod intermediate lts ends on said" dius arms are inftheir'jdepressed position.;

an actuating shaftjfor reciprocating said carriage plate; a crank formed on said shaft; a rod pivotally connected at one 'end on said crank; means for pivotally mounting said rod intermediate its ends on said carriage plate, whereby the free end thereof-is adapted to oscillate; means .by which theos'cillation of the free end of said rod is adapted to raise and "depress the free ends of said radius arms; and means for preventing lateral movement of said radius arms.

7. A mechanical movement for intermittently moving a strip of material comprising a support having parallel guides thereon; a carriage plate .sliding in said guides; radius arms pivoted on said carriage plate; means carried on the free ends of said radius arms for gripping said strip when said radius arms'are in theirdepressed po-- sition; an actuating shaft for reciprocating said carriage plate; a-crank formed on said shaft; a rod pivotally connected at one end l carriage plate, whereby the free end thereof is adapted to oscillate; means by which the voscillation of the free end of said rod is adapted to raise and ldepress the free ends of said radius arms; and means vfor guiding the free end of said oscillating rod.

l.. 8.' Af-mec'lianical movmnt for intermittently moving a strip of material comprising a support having parallel gides thereon; a carriage plate sliding in'said guides; radius arms pivoted on said carriage plate; means carried on the free ends of said radius arms `for .grippin said strip when said radius arms are 1n t leir depressed position; an actuating shaft for reciprocating said carriage plate; a crank formed on said shaft; a rod pivotally' connected at one end on'sald crank; means for pivotally mounting. saidrod intermediate its ends-ollsaid carriage plate whereby the free end thereof yis adapted. to oscillate; means by which the oscillation of the free end of said rod is adapted to raise and depress the freeends of said radius arms; means for guiding the free end of said rod; and .means for preventing lateral movement ofsaid radius arms.

9. Incombination, a1 vertically reci rocating crosshead mounted ony guide rail, a crank to operate s aidA crosshead and moving in a plane parallel thereto, a .link .connection between said erosshead and said crank and moving in aplaneparallel to that of the said crosshead, an extension-on said link ex. tending beyond -its pivotal center on Vthe crosshead; arms pivotally'mounted on the crosshead -and extending upwardly 4terminating in Lfshaped pins adapted to en the f ilmperforations, a plate secured to t e free ends ofsaid arms-having a cam slot engaged by' the said ,upward extension of the link; said slot having two portions, olfset with referenceafto each other, extendingl in a plane Ifpa'rallelto .the 'movement -of the said link, and an interinediate'portion, oonnecting the aforementioned portions, extending in a plane oblique to said plane', substantially as and for the purpose set forth. l

In testimony whereof, vI have vhereunto set my hand 4at Los Angeles, Californian, this 20th day of' February, 1917. v y CLARENCE J. COBERLY.

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